Beached Shipwrecks from Channel Islands National Park,California

Abstract

Three shipwreck sites of the 19th century in Channel Islands National Park, California form case studies in evaluating the contribution of beached shipwrecks to maritime and historical archaeology. Two of the sites are consistent with the historically-documented Pacific coast lumber schooners J. M. Colman and Dora Bluhm, but the archaeological record is sparse. Material remains are compared to primary documents, such as original 19th-century construction contracts and insurance classifications, to make a case for the beached shipwreck scatters belonging to these ships. A third site, Comet, presents the other end of the spectrum; its remains have been conclusively identified by historical photographs and the site is a partially-intact hull embedded in the beach sand. This site was also recorded in detail and the formation processes of all three sites were examined to aid in archaeological interpretation.     

The 4th-century B.C. shipwreck at Mazotos,Cyprus: New techniques and methodologies in the 3D mapping of shipwreck excavations

Abstract

Well preserved ancient shipwrecks are rare in the archaeological record, but when discovered, they can provide valuable information on a wide range of research issues if analyzed and documented properly. In this paper we discuss the significance, potential, and constraints of mapping methods applied during the underwater excavation of shipwreck sites with special emphasis on stratigraphy, documentation of finds, and reconstruction of site formation processes. As a case study, we present the digital photogrammetry and computer vision software programs used in the excavation of the 4th-century b.c. shipwreck at Mazotos, Cyprus. Our goal is to develop a targeted documentation and mapping method of ongoing shipwreck excavations so that others can address complex research questions concerning this unique discipline of archaeology.     

Cultural Site Formation Processes in Maritime Archaeology: Disaster Response, Salvage and Muckelroy 30 Years on

Thirty years after Muckelroy's seminal 1976 paper on shipwreck site formation, research on the cultural processes which contribute to the creation and modification of shipwrecks remains limited. It is proposed that by adopting a process-oriented framework, we can integrate and synthesize the documentary, oral and archaeological evidence of human response to shipwreck into a structure which parallels the physical progress of the disaster. Possible cultural responses to shipwreck are considered, from pre-voyage planning through to post-impact salvage, including physical correlations potentially visible in the archaeological record.
© 2006 The Author     

Marine geophysical investigation of the inshore coastal waters of Northern Ireland

Northern Ireland has been subject to significant maritime influences throughout its 9000-year known human history. In 1997 the University of Ulster in partnership with the Environment and Heritage Service (DOE, NI) embarked on a programme of seabed mapping in an attempt to record the submerged and buried archaeological resource using a suite of geophysical equipment including a side-scan sonar, a Chirp sub-bottom profiler and a proton precession magnetometer. The geophysical research programme has successfully imaged 80 19th- and 20th-century wrecks, and 20 targets of further archaeological potential. These data will aid the production of wreck-prediction indices for the coastline of Northern Ireland based on site formation processes and site stability. This information will make valuable additions to both Sites and Monuments Records and to the shipwreck database currently under consideration at the University of Ulster.     

Toggles and Sails in the Ancient World: Rigging Elements Recovered from the Tantura B Shipwreck, Israel

Excavation of the 9th-century AD shipwreck B in Tantura Lagoon, Israel, yielded four toggles, numerous rope fragments, and three pierced wooden spatulate objects believed to be associated with the ship's rigging. In the first half of the article, the toggles are described and compared to a corpus of similar devices found on both land and shipwreck sites. The spatulate devices are tentatively identified as spill-toggles, pierced for attaching a trip-line. The second half of the article traces the textual and iconographical evidence for toggles and sail types––in particular, the lateen––in the ancient Mediterranean, and their possible association.
© 2008 The Author     

Predicting the Fate of Artefacts in Energetic, Shallow Marine Environments: an Approach to Site Management

A poor understanding of the physical environment often hinders management of marine artefacts. A study was conducted of an early-18th-century shipwreck to test whether the wreckage could have settled through ∼3.5 m of substrate. Results indicate that the wreck could have settled via episodic scour processes driven by storms and tidal inlet migration. A numerical model, modified to include characteristics of the underlying geology, predicts continued scour under moderate waves. Scour processes appear to have been interrupted by an erosion-resistant underlying layer, so that the wreck now remains exposed, subject to degradation. A generalized approach to predict burial or exposure of other shallow-water artefacts is developed.
© 2006 The Authors     

The Dor D Shipwreck and Holy Land Wine Trade

The Dor D shipwreck off Israel is a 6th-century AD scattered site on which Cypriot ballast stones seal hull planking and fragmentary cargo amphorae manufactured in southern Palestine. Petrological studies of the domestic assemblage and roof tiles indicate a Cypriot provenance for the ship, which was apparently returning empty amphorae to Palestine for recycling at a time when consumer demands for Holy Land wines stretched from Yemen to southern Britain. The ship post-dates the Justinianic plague of AD 541 and, therefore, provides important evidence for trade continuity in a period traditionally defined as one of economic decline.     

Lead anchor-stock cores from Tektas Burnu, Turkey

Four sets of lead anchor-stock cores have been found recently on the 5th-century BCE Greek shipwreck at Tektag Burnu, Turkey. The anchor type these cores represent was the earliest departure from the use of stone in anchor construction. Scholars have dated this technological advance to c . 400 BCE, but the Tektas Burnu cores now indicate that the anchor type already existed in the third quarter of the 5th century BCE.     

The Western Ledge Reef wreck: a preliminary report on investigation of the remains of a 16th-century shipwreck in Bermuda

In September 1988 archaeologists and students from the Program in Maritime History and Underwater Research at East Carolina University (PMHUR) identified the remains of an early shipwreck during a survey of the Western Ledge Reefs carried out for the Bermuda Maritime Museum (BMM). Structural material exposed at the wreck site proved to be a section of lower hull containing the keel, hull planking, frames, and a portion of the keelson that included a mast-step. In order to recover the archaeological record preserved at the site, the BMM applied for, and received, a licence from the Receiver of Wreck. As work at the site intensified, a prior claim to the wreck was discovered. Discovery of that claim ultimately led to a co-operative agreement between Brian Malpas, Donald Canton and the BMM that permitted on-site investigation to continue. During 1989 and 1990, the site was excavated by the Museum's underwater archaeological staff, the staffand students of the PMHUR and volunteers. In 1990, a comprehensive in situ map of the hull remains was completed and in accordance with the terms of an agreement between Malpas and Canton and the BMM, a team of archaeologists, students and volunteers raised the remains of the Western Ledge shipwreck in August 1991. Each recovered element of the wreck was transported to storage facilities at the museum and catalogued, cleaned, recorded and documented using techniques developed to record the Red Bay galleon. That work was completed in the autumn of 1991 and on 31st October 1991 the wreck structure was donated to the museum for study and possible display.     

Analysis of hull remains of the Dor D Vessel, Tantura Lagoon, Israel

A relatively closely spaced set of unpegged mortise-and-tenon joints was the significant element revealed in the 7th-century AD shipwreck, Dor D. It provides additional information for the transitional period of shipbuilding in the Mediterranean, and together with additional wrecks it establishes a better database for ship construction in the 4th–11th centuries AD. The preliminary conclusions tend to draw a slightly more complicated picture of the general evolutionary trend, since they present some features that have traditionally been considered as a disappearing technique.     

Pigments from the Zuiddorp (Zuytdorp) ship sculpture: red,white and blue?

SUMMARY: The Dutch East India Company ship Zuiddorp (also known as Zuytdorp) met its demise in 1712 at the base of steep cliffs along the Western Australian coast. Material from the shipwreck includes an extraordinary example of a caryatid herm from the ship’s stern counter. A recent study of this sculpture and the pigments found on its surface demonstrates Zuiddorp’s archaic stern construction and adornment, which is more of a late 17th-century, than an early 18th-century, Dutch Indiaman. This paper discusses the results of this study and emphasizes how the smallest pieces of evidence can broaden our understanding of contemporaneous regional Dutch East India Company shipbuilding practices.     

Shipwreck in a swamp: the Burroughs site at Edenton, N. Carolina, USA

This preliminary site analysis of a suspected 18th-century shipwreck located in Edenton, North Carolina, USA, helps call to question the roll of abandonment in the examination of ships as artefacts. Abandonments often provide an easily accessed and inexpensive means of fleshing out knowledge of ship construction in the past. Abandonments are typically located near historically well-used commercial ports and harbours and may now be hidden by shallow water, marshland or land fill. These areas, in many instances, are inaccessible to normal remote sensing survey techniques.     

The Navarino Naval Battle Site, Greece—an Integrated Remote-Sensing Survey and a Rational Management Approach

An integrated remote-sensing survey was carried out in Navarino Bay, where in 1827 a battle was fought between the allied British, French and Russian navies and the Turkish-Egyptian fleet. Integration and interpretation of the remote-sensing data has shown the presence of shipwreck remains on the sea-floor and possible shipwrecks buried under the sea-bed. It has also shown that the historical remains are under threat from the heavy anchors of tankers which sink into the sea-bed and, when dragged, dig furrows, thus disintegrating the shipwreck remains. To protect the sites the construction of permanent anchoring systems away from the shipwreck remains is recommended.
© 2005 The Nautical Archaeology Society     

Rainton Bridge South Waggonway

Abstract

The waggonways of the north-east of England represented one of the earliest widespread forms of early railway technology; they were in time to evolve into the modern railway as it was adopted worldwide. However, there has been comparatively little opportunity to carry out detailed archaeological examination of specific sites. Recently, Pre-Construct Archaeology Limited has been able to record the remains of an 18th-century waggonway at Rainton Bridge South, Houghton-le-Spring, which has added significantly to understanding of how these systems evolved and how their archaeology survives.     

The Tantura F shipwreck: hull remains and finds—final report

The Tantura F shipwreck was discovered in 1996, and was excavated in 2004–2007. It was dated to between the mid 7th and the end of the 8th centuries AD. The remains comprised the bottom of the hull, including the lower part of the turn of the bilge on both sides and the beginning of the upward curvature at the bow and the stern. It was constructed based on frames. Among the finds were two anchors, 30 ceramic items, fish remains, food remnants, matting and ropes. The finds are of eastern Mediterranean and Egyptian origins. The Tantura F shipwreck is evidence of frame‐first construction in the period. It is also evidence of a trade route along the Levant coast and of the existence of a settlement in the Dor region at that time.     

A 9th-century Arab or Indian shipwreck in Indonesian waters

The article describes in some detail the structural features of a 9th-century shipwreck that was recently found in Indonesian waters. The principle features of the wreck include planks joined by stitching with wadding inboard and outboard of the hull, a sharp bow with little rake, stitched-in frames, through-beams stitched to the hull, removable ceiling planks, a keelson and stringers, and a composite iron and wood anchor. These characteristics are shown to be those of ancient Arab and Indian vessels. Identification of several timber species confirms that the ship was constructed in the western Indian Ocean region. The cargo provides strong evidence for China as the place of lading. © 2000 The Nautical Archaeology Society     

The Byzantine‐Period Dor 2006 Shipwreck,Israel: preliminary hull construction report

The Dor 2006 shipwreck was discovered in 2006, 100 m offshore, 800 m south of Dor (Tantura) lagoon. The wooden hull remains included sections of large frames, stringers and ceiling planks, a large number of strakes and wales, some with unpegged mortise‐and‐tenon joints. Among the finds were ceramic sherds, wooden objects, matting, ropes, food remains, and coins. The shipwreck was dated to between the second half of the 6th and the first quarter of the 7th centuries AD. The wooden components of the hull indicate a large ship compared with other shipwrecks of the period, and the largest ever excavated in the Dor area.     

Thomas Soane's buildings near Billingsgate,London, 1640–66

Abstract

Excavations at Billingsgate in the City of London in 1982 uncovered extensive remains of the 17th-century buildings of Botolph Wharf. Changes to the structures, and an exceptionally rich array of artefacts datable to 1620–66 (the Great Fire of London), are attributable to the tenancy of Thomas Soane, grocer, and later of his widow. The artefacts and buildings demonstrate differing domestic and warehouse uses just before the Fire, and complement the documentary record. When taken with plan evidence from the Treswell surveys of c. 1612, the excavations prompt discussion of how warehouses fitted into the configuration of buildings in the pre-Fire City.     

The role of scour in shipwreck site formation processes and the preservation of wreck-associated scour signatures in the sedimentary record – evidence from seabed and sub-surface data

Fully submerged shipwreck sites act as open systems, with the exchange of material (sediment, water, organic and inorganic objects) and energy (wave, tidal, storm) across system boundaries. Formation processes at wreck sites are driven by some combination of chemical, biological and physical processes, with physical processes dominant in initial phases of site formation. Scouring and associated depositional patterns that form in response to hydrodynamic forcing are commonly the dominant physical processes acting at shipwreck sites. Scour is initiated by the introduction of a shipwreck to the seafloor, leading to increases in flow velocity and turbulent intensity around the structure. Near-field and far-field scour pits form at wreck sites due to the interaction of horseshoe and lee wake vortices with the mobile substrate. The morphology of resultant scour signatures are controlled by the orientation of the wreck structure in relation to the prevailing hydrodynamic regime, the morphology and size of the wreck and individual site components, the hydrodynamic regime (currents, waves or combined waves and currents), bathymetry and the geology of the site (seafloor and sub-surface conditions). Individual objects or artefacts may act as nuclei to promote scour at a local scale. Under high-energy conditions, groups of artefacts and/or disarticulated structural components emanating from a wreck may compound natural scour processes by rolling or sliding. Under suitable environmental conditions, wreck-associated scour features can be preserved in the sedimentary record.     

New insights regarding the Akko 1 shipwreck: a metallurgic and petrographic investigation of the cannonballs

The Akko 1 shipwreck constitutes the remains of a small Mediterranean naval vessel, discovered in Akko harbour, Israel, and excavated over three seasons between 2006 and 2008. Among the finds at the shipwreck site were eleven cannonballs. Two of them, a 9-pdr and a 24-pdr, were retrieved and studied using metallurgical and petrographic methods. The examination of the cast-iron was performed with optical microscopy, SEM–EDS, XRF and microhardness tests. The remains of the casting sand from within the voids in both cannonballs were studied by petrography. Combined with the archaeological evidence and the historical background, the metallurgical and petrographic testing may suggest that Akko 1 was a warship or an auxiliary naval vessel of similar size to, or slightly smaller than, sixth rate, and was in Akko harbour circa 1840.